Node* CylinderSurfaceModule::evaluate(Context* ctx)
{
NumberValue* heightValue = dynamic_cast<NumberValue*>(getParameterArgument(ctx,0));
double h=1.0;
if(heightValue)
h=heightValue->getNumber();
NumberValue* rValue = dynamic_cast<NumberValue*>(getParameterArgument(ctx,1));
double r=1.0;
if(rValue)
r=rValue->getNumber();
Value* centerValue=getParameterArgument(ctx,2);
bool center=false;
if(centerValue)
center=centerValue->isTrue();
double z1,z2;
if(center) {
z1 = -h/2;
z2 = +h/2;
} else {
z1 = 0.0;
z2 = h;
}
int f = getFragments(r,ctx);
Polygon c1 = getCircle(r,f,z1);
Polygon c2 = getCircle(r,f,z2);
PrimitiveNode* p = new PrimitiveNode();
for(int i=0; i<f; i++) {
int j=(i+1)%f;
p->createPolygon();
p->appendVertex(c1.at(i));
p->appendVertex(c2.at(i));
p->appendVertex(c2.at(j));
p->appendVertex(c1.at(j));
}
return p;
}
Node* CircleModule::evaluate(Context* ctx)
{
NumberValue* rValue=dynamic_cast<NumberValue*>(getParameterArgument(ctx,0));
double r=1;
if(rValue) {
r=rValue->getNumber();
}
int f = getFragments(r,ctx);
Polygon c = getCircle(r,f,0);
PrimitiveNode* p = new PrimitiveNode();
if(r > 0) {
p->createPolygon();
for(int i=0; i<f; i++)
p->appendVertex(c.at(i));
}
return p;
}
Node* SphereModule::evaluate(Context* ctx)
{
NumberValue* rValue=dynamic_cast<NumberValue*>(getParameterArgument(ctx,0));
Value* centerValue=getParameterArgument(ctx,1);
bool center=true;
if(centerValue)
center=centerValue->isTrue();
double r=1.0;
if(rValue) {
r=rValue->getNumber();
} else {
NumberValue* dValue = dynamic_cast<NumberValue*>(ctx->getArgument(0,"diameter"));
if(dValue)
r=(dValue->getNumber()/2.0);
}
int f = getFragments(r,ctx);
int ringCount=f/2;
QList<Polygon> rings;
for(int i=0; i<ringCount; i++) {
double phi = (M_PI*(i+0.5)) / ringCount;
double r2 = r*sin(phi);
double z = r*cos(phi)+!center*r;
Polygon c = getCircle(r2,f,z);
rings.append(c);
}
PrimitiveNode* p = new PrimitiveNode();
p->createPolygon();
for(int i=0; i<f; i++)
p->appendVertex(rings.at(0).at(i));
for(int i = 0; i < ringCount-1; i++) {
Polygon r1 = rings.at(i);
Polygon r2 = rings.at(i+1);
int r1i = 0, r2i = 0;
while(r1i < f || r2i < f) {
if(r1i >= f)
goto next_r2;
if(r2i >= f)
goto next_r1;
if((double)r1i / f <
(double)r2i / f) {
next_r1:
p->createPolygon();
int r1j = (r1i+1) % f;
p->prependVertex(r1.at(r1i));
p->prependVertex(r1.at(r1j));
p->prependVertex(r2.at(r2i % f));
r1i++;
} else {
next_r2:
p->createPolygon();
int r2j = (r2i+1) % f;
p->appendVertex(r2.at(r2i));
p->appendVertex(r2.at(r2j));
p->appendVertex(r1.at(r1i % f));
r2i++;
}
}
}
p->createPolygon();
for(int i=0; i<f; i++)
p->prependVertex(rings.at(ringCount-1).at(i));
return p;
}
Node* ConeModule::evaluate(Context* ctx)
{
NumberValue* heightValue = dynamic_cast<NumberValue*>(getParameterArgument(ctx,0));
NumberValue* r1Value = dynamic_cast<NumberValue*>(getParameterArgument(ctx,1));
NumberValue* r2Value = dynamic_cast<NumberValue*>(getParameterArgument(ctx,2));
Value* centerValue = getParameterArgument(ctx,3);
decimal h=1.0;
if(heightValue)
h=heightValue->getNumber();
decimal r1=0,r2=0;
if(r1Value)
r1=r1Value->getNumber();
if(r2Value)
r2=r2Value->getNumber();
bool center = false;
if(centerValue)
center=centerValue->isTrue();
decimal z1,z2;
z1 = 0.0;
z2 = h;
Fragment fg=getSpecialVariables(ctx);
decimal r=fmax(r1,r2);
int f = fg.getFragments(r);
Polygon* p1 = getCircle(r1,f,z1);
Polygon* p2 = getCircle(r2,f,z2);
QList<Point> c1=p1->getPoints();
QList<Point> c2=p2->getPoints();
PrimitiveNode* p = new PrimitiveNode();
if(r1 > 0) {
p->createPolygon();
foreach(Point pt, c1)
p->appendVertex(pt);
}
if(h==0.0)
return p;
for(int i=0; i<f; i++) {
int j=(i+1)%f;
if(r1 > 0) {
p->createPolygon();
p->appendVertex(c1.at(i));
p->appendVertex(c2.at(i));
p->appendVertex(c1.at(j));
}
if(r2 > 0) {
p->createPolygon();
p->appendVertex(c2.at(i));
p->appendVertex(c2.at(j));
p->appendVertex(c1.at(j));
}
}
if(r2 > 0) {
p->createPolygon();
foreach(Point pt,c2)
p->prependVertex(pt);
}
if(center) {
AlignNode* n=new AlignNode();
n->setCenter(true);
n->addChild(p);
return n;
}
return p;
}
Node* SphereModule::evaluate(Context* ctx)
{
NumberValue* rValue=dynamic_cast<NumberValue*>(getParameterArgument(ctx,0));
Value* centerValue=getParameterArgument(ctx,1);
bool center=true;
if(centerValue)
center=centerValue->isTrue();
decimal r=0.0;
if(rValue) {
r=rValue->getNumber();
} else {
NumberValue* dValue = dynamic_cast<NumberValue*>(ctx->getArgument(0,"diameter"));
if(dValue)
r=(dValue->getNumber()/2.0);
}
if(r==0.0)
return new PointNode();
Fragment fg=getSpecialVariables(ctx);
int f = fg.getFragments(r);
int ringCount=f/2;
decimal h=center?0.0:r;
QList<Polygon> rings;
for(int i=0; i<ringCount; i++) {
decimal phi = (M_PI*(i+0.5)) / ringCount;
decimal r2 = r*sin(phi);
decimal z = r*cos(phi)+h;
Polygon* c = getCircle(r2,f,z);
rings.append(*c);
}
PrimitiveNode* p = new PrimitiveNode();
p->createPolygon();
Polygon top=rings.at(0);
foreach(Point pt, top.getPoints())
p->appendVertex(pt);
for(int i = 0; i < ringCount-1; i++) {
QList<Point> r1 = rings.at(i).getPoints();
QList<Point> r2 = rings.at(i+1).getPoints();
int r1i = 0, r2i = 0;
while(r1i < f || r2i < f) {
if(r2i >= f||(decimal)r1i/f<(decimal)r2i/f) {
p->createPolygon();
int r1j = (r1i+1) % f;
p->prependVertex(r1.at(r1i));
p->prependVertex(r1.at(r1j));
p->prependVertex(r2.at(r2i % f));
r1i++;
} else {
p->createPolygon();
int r2j = (r2i+1) % f;
p->appendVertex(r2.at(r2i));
p->appendVertex(r2.at(r2j));
p->appendVertex(r1.at(r1i % f));
r2i++;
}
}
}
p->createPolygon();
Polygon bottom=rings.at(ringCount-1);
foreach(Point pt, bottom.getPoints())
p->prependVertex(pt);
if(center) {
AlignNode* n=new AlignNode();
n->setCenter(true);
n->addChild(p);
return n;
}
return p;
}